Verbform so richtig?

Wir sollen die eingeklammerten Verben in die richtige Form bringen.
Habe mein bestes versucht, der Text ist zwar lang, wäre aber nett wenn ihr mal rüberschauen könntet.
Nach der Zahl kommt die Form von mir und das verb in eingklammerter Form ist die Vorgabe.

Peterborough is a cathedral city with a population of 160000 in-habitants in the east of England.
It is situated on the River Nene and on the main railway line from London to Scotland.
Indeed, most people (1) heard (hear) of the city because they (2) changed (change) trains at Peterborough because of the good connections to other parts of the country.
The axes that (3) found (find) in this area tell us that the first people (4) came (come) to Peterborough because a few 100000 years ago.
The Romans (5) arrived (arrive) in the first century AD and (6) tried (try) to get control but the people (7) were fought (fight) them.
After that villas and farms (8) built (build) and the people (9) lived (live) well in the productive countryside.
Originally the city (10) was called (call) Medeshamstede then “Burh” an Anglo –Saxon name and later “Burh St Peter”.
During the 13th century the people of Peterborough were very busy and a lot of building (11) done (do): a bridge over the river, a new church and the old church (12) was made (make) bigger.
When this church (13) became (become) a cathedral, Peterborough (14) got (get) the status of city.
In 1845 something important (15) happened (happen). Peterborough (16) was connected (connect) to the railway line.
260 new houses (17) were constructed (construct) and by 1901 25% of the city’s men (18) worked (work) on the railway.
Since then Peterborough (19) grown (grow) bigger.
Most people work in the city itself but some commute to London only 80 miles to the south.
A lot (20) was done (do) to give people a good life e.g. a new shopping centre in 1978 and lots of leisure facilities such as cinemas an ice-rink and a brand new theatre by the river.